Ball/rollerscrews for electric moulding machines
A
SKF UK product story
Edited by the Engineeringtalk editorial team
Dec 20, 2001
Using the SKF range of ballscrews, injection, ejection and clamping can be provided from an electric motor drive for moulding machines with up to 100 tonnes clamping load
Changing from hydraulic to all-electric drives on injection moulding machinery gives users and machine designers the benefits of higher yield of more precise parts, lower maintenance, reduced power consumption and a more compact installation.
In addition, better environmental conditions can be established for the workforce, through noise reduction and the elimination of the problems associated with hydraulic leakage and fire hazards.
SKF ballscrews and roller screws provide a high rigidity drive system which gives flexible and controllable operational sequence.
Using the SKF range of ballscrews, injection, ejection and clamping can be provided from an electric motor drive for moulding machines with up to 100 tonnes clamping load.
Between 100 and 400 tonnes, either ball or roller screws can be used.
Above 400 tonnes only roller screws are suitable.
The roller screw accommodates higher loads, acceleration and maintains higher linear speeds with a more rigid power transmission.
SKF has developed its Ultra Power range of roller screws specifically for the extreme demands of injection moulding.
Dimensions go from 60 to 180 mm diameter, dynamic load capacities from 50 to 220 tonnes and static from 120 to 1200 tonnes.
These features give the high precision and process consistency demanded of modern, high productivity, injection moulders which traditional hydraulic solutions cannot match.
(This was Engineeringtalk's Top Story on 19 December 2001).
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